html, body {
    background-color: #f2f6f9;
    padding: 0;
    margin: 0;
    font-size: 14px;
}

ul, li {
    margin: 0;
    padding: 0;
}

ul {
    list-style: none;
}
.mybtn {
    -webkit-appearance: none;
    font-size: 18px;
    height: 41px;
    line-height: 41px;
    outline: 0;
    overflow: hidden;
    position: relative;
    text-align: center;
    border-radius: 4px;
    border: 0;
    box-sizing: border-box;
}
.mybtn::after {
    background-color: #000;
    content: " ";
    opacity: 0;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    position: absolute;
}
.mybtn-primary {
    color: #fff;
    background-color: #26a2ff;
}
